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CC2540写错误

yang yang20
Prodigy 210 points
Other Parts Discussed in Thread: CC2540

1、请问一下在CC2540中，调用err = GATT_WriteCharValue( timeAppConnHandle, &req, timeAppTaskId );函数写数据的时候没有写成功，返回值为err=blePending=0x16,表示A response is pending with this server，每一次发送完成后需要等待大于7秒，下一次数据才能发送成功，server才能收到数据。请问一下。出现这种情况是什么问题呢？谢谢